Anchor



(No Model.)

A. MODOUG'ALL. 1111011011.

No. 445,816. Patented Feb. 3,1891.

m 44,6 ,906, a fl m v r I 4 A (I) UNITED STATES PATENT OFFICE.

ALEXANDER MODOUGALL, OF DULUTH, MINNESOTA, ASSIGNOR TO THE AMERICANSTEEL BARGE COMPANY, OF NEXV YORK.

ANCHOR.

SPECIFICATION forming part of Letters Patent No. 445,816, dated February3, 18 91.

Application filed March 24, 1890. Serial No. 345,019- (No model.)

To all whom, it may concern:

- Be it known that I, ALEXANDER MCDO'U- GALL, a citizen of the UnitedStates, residing at Duluth, in the county of St. Louis and State ofMinnesota, have invented certain new and useful Improvements in Anchors;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to various new and useful improvements in stocklesssinglefiuke a11chors.

The principal objects of my invention are to provide and produce ananchor of that variety which can be manufactured very cheaply, whichwill be extremely portable and occupy butlittle space on the deck, andwhich will be very effective in operation.

Tothis endthe invention consists, generally, of a main triangularmetallic frame-work, a single fluke or blade pivoted within said frame,and a pivoted link for limiting the movements of the fluke, all as willbe herein after set out and claimed.

For a better comprehension of my invention attention is invited to theaccompanying drawings, forming a part of this specification, and inwhich- Figure l is a perspective View of my improved anchor; Fig. 2, aplan View of the.

same; Fig. 3, a side elevation, partly in section; Fig. 4, a separateelevation of the link and pivoting-pin.

In all of the above views corresponding parts are designated by the sameletters of reference.

A represents the main frame of the device made of the generalrectangular shape shown-viz., with the two inclined sides a a and thetwo short connecting sides I) b. This frame-work may be made ofcast-metal, if desired; but I prefer to make the same of rectangularwrought-iron or steel bars heated and hammered to the proper shape. Thetwo inclined sides at their forward ends are either welded or rivetedtogether, or else these sides Z) and b of the frameis bent over at itsinner end to form lugs or cars (l and cl, projecting outwardly. Passingthrough these lugs or ears (I d is a metallic pivoting-pin E, arrangedso as to turn easily in said lugs or ears. The ends of this pivoting pinextend outon the sides of the lugs or ears, and are intregally connectedwith a link B,before referred to, and

arranged as shown. This link is of the ordinary construction, and is ofthe general form shown in the drawings. By this means the link will beallowed a certain limited movementon the pivoting-pin, so that it may beinclined either to the right or to the left, as may be desired. Themovements of this link are restricted, as will be evident, by thebearing-surfaces ff thereof coming in contact with the upper and lowerfaces of the lugs or ears d cl. The fluke O of the anchor is pivotedbetween the lugs or ears (Z d on the pin E and is capable of movement onthis pin. The fluke is provided with a blade 9, adapted to enter theground, with a shank portion h, with an enlarged head 11, through whichthe pivoting-pin E passes, and with a small lug j, forming acontinuation of said enlarged head. hen the fluke is in position on thepivotingpin, and when it is moved in one direction as far as possible,it will be seen that the portion of the shank h directly below theheadt' will engage with one of the surfaces J of the link B, and thatthe lug 3 thereof will engage with the other surface f of the link, sothat the fluke will be held very rigidly from other movement. It willalso be evident that to which ever side the fluke may be moved it willbelocked in its properposition by the link B, as I have just explained.This means for looking the fluke in position is very strong and rigid,since the link bears against three immovable surfacesviz.,thepivoting-pin and the upper and lower surfaces of the lugs or cars dd'and the fluke bears against three surfaces also-viz., the pivoting-pinand the two surfaces ff of the link.

The operation of my improved anchor is as follows: The device is loweredfrom the vessel in the usual way, and will of course rest in a fiatposition on the bottom. The fiuke will drop by its own Weight and willenter the ground, and as a strain is brought on the anchor by themovement of the vessel the fluke will be forced farther into the grounduntil it has reached an angle of about fifty degrees, when its motionwill be arrested by the link, as was before explained. As any additionalstrain is brought on the anchor, the fluke will be caused to bury deeperinto the ground until the dirt, sand, or gravel of the bottom is piledup in front of and around the connectingpieces I) b, so that the anchorwill be firmly embedded in the ground. WVhichever side the anchor mayfall on, the fluke will enter the ground with equal facility, since itis pivotally mounted on the pin, and its movement will be restricted bythelink B on either side, as Will be understood.

Having now described my invention, what I claim as new therein, anddesire to secure by Letters Patent, is as follows, viz:

1.. In an anchor, the combination of a metallic frame-work, a singlefluke pivoted to said frame-work, and a link, substantially asdescribed, pivoted so as to surround the shank of said fluke and limitthe movements of the same.

2. An improved anchor consisting of a frame-work of a generalrectangular shape havingcross-pieces b b at its rear end and adapted toengage with the ground, lugs or ears formed by a continuation of theseconheating-pieces and extending rearwardly, a single fluke pivotedbetween these lugs, and a link E, mounted on the pivoting-pin b or thefluke and surrounding the shank of the same and adapted to limit themovements of the fluke, substantially as set forth."

3. An improved anchor consisting of a metallic frame having lugs cl d atits rear end, a single fluke pivoted between said ears and carrying alug j, and a link mounted on the pivoting-pin for the fluke and adaptedto limit the movements of the fluke, substantially as set forth.ALEXANDER MODOUGALL.

In presence of-- O. E. WAoH'rnL,

W. M. Ross.

